Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
Radon Levels in West Baton Rouge Parish, Louisiana
EPA puts West Baton Rouge Parish in Zone 3, its lowest radon zone, and most reported tests there come back low, though 0.0% of 42 (2022) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
0.0%
0.4 pts below LA
- West Baton Rouge Parish
- 0.0%
- Louisiana
- 0.4%
42 tests, 2022
Median result
0.6pCi/L
Below action level
- West Baton Rouge Parish
- 0.6 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2022
Tests reported
42
9th of 9 by tests
- West Baton Rouge Parish
- 42
- Caddo Parish
- 486
Reported to CDC before any fix, 2022
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Louisiana
2 of 9
Top quarter
- West Baton Rouge Parish
- 0.0%
- Caddo Parish
- 1.9%
By share, of 9 with 30+ tests
Read a result for West Baton Rouge Parish
Starts at West Baton Rouge Parish's median, 0.6 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.6 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. West Baton Rouge Parish's median reported result, 2022.
The data
West Baton Rouge Parish, At a glance
West Baton Rouge Parish at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for West Baton Rouge Parish, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2018 | 0.0% |
| 2020 | 0.0% |
| 2021 | 0.0% |
| 2022 | 0.0% |
2022: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 42 tests reported to CDC for West Baton Rouge Parish over 2022, many from homes being sold or already suspected of a problem: they describe the parish's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2022. Measured data period: 2018 to 2022 (every CDC figure on file).
West Baton Rouge Parish, Compared
West Baton Rouge Parish radon figures, compared
Calculated by Radon411Only 0 of 42 radon tests reported for West Baton Rouge Parish in 2022 reached 4 pCi/L (0.0%). The median result, 0.6 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 1.3 pCi/L.
Across 12 Louisiana counties pooled together, 0.4% of tests reached that level, so West Baton Rouge Parish runs 0.4 points below its state. Against the national pool of 23.9%, the gap is 23.9 points lower. Its place in the state: 2nd of 9 Louisiana counties with 30 or more tests for the same period.
Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 0.0% share point the same way here. East Baton Rouge Parish, the one bordering county with a figure for the same period, reported 0.0%.
Below the action level, 42 tests (100.0%) came in under 2 pCi/L, against 98.1% statewide, and 0 tests (0.0%) fell between 2 and 4, against 1.5% statewide. Over 3 years of annual figures the share held within 2 points, from 0.0% in 2020 to 0.0% in 2022; its peak was 0.0% in 2020. USGS geology rates 100% of the county's land low radon potential.
The busiest year on file was 2021, with 453 tests reported; the quietest, 2018, had 3.
West Baton Rouge ParishLouisiana, pooled
| Year | Tests | West Baton Rouge Parish, at or above 4 pCi/L | Louisiana, pooled |
|---|---|---|---|
| 2020 | 75 | 0.0% | 0.8% |
| 2021 | 453 | 0.0% | 3.9% |
| 2022 | 42 | 0.0% | 0.4% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
West Baton Rouge Parish, Geology
The ground under West Baton Rouge Parish
PredictedUSGS's geologic map puts all of West Baton Rouge Parish's mapped land in one class: low radon potential. All of it lies in the area the map calls Floodplain, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Floodplain | Alluvium, marsh, silt, and clay. | Low | 7 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
West Baton Rouge Parish beside the ground around it
Neither West Baton Rouge Parish nor Louisiana as a whole has any land USGS rates above low potential. None of the 5 parishes that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
West Baton Rouge Parish, Local resources
Radon testing and mitigation in West Baton Rouge Parish
- Louisiana's radon programLouisiana Department of Environmental QualityLouisiana's radon program answers questions about testing, mitigation and the rules in Louisiana.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Louisiana directoryNo professionals are listed in Louisiana yet. The state program can point you to registered testers and mitigators.
What it means
West Baton Rouge Parish, Questions
Questions about radon in West Baton Rouge Parish
Are radon levels high in West Baton Rouge Parish?
In 2022, 0.0% of the radon tests reported to CDC for West Baton Rouge Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.6 pCi/L. Of 9 Louisiana counties with 30 or more tests for the same period, 1 reported a higher share; pooled, the state comes to 0.4%.
Which counties border West Baton Rouge Parish?
West Baton Rouge Parish borders 5 parishes: Iberville Parish, East Baton Rouge Parish, West Feliciana Parish, Pointe Coupee Parish and East Feliciana Parish.
Products
West Baton Rouge Parish, Products
Testing a home in West Baton Rouge Parish
In West Baton Rouge Parish, 0.0% of 42 tests reported to CDC in 2022 reached 4 pCi/L, against 0.4% pooled across Louisiana. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in West Baton Rouge Parish.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Monitor
Corentium Home 2 battery digital radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Screen, app
Method: Alpha spectrometry
Readings: Every 60 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Best radon monitors for West Baton Rouge Parish homes, compared
Explore
West Baton Rouge Parish, Bordering parishes
Parishes bordering West Baton Rouge Parish
Calculated by Radon411- Radon levels in East Baton Rouge ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 447 tests · 0.0 points above West Baton Rouge Parish
- Radon levels in Iberville ParishEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.
- Radon levels in West Feliciana ParishEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.
- Radon levels in Pointe Coupee ParishEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.
- Radon levels in East Feliciana ParishEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.
West Baton Rouge Parish, Cities and towns
Cities and towns in West Baton Rouge Parish
West Baton Rouge Parish is growing: the Census Bureau puts it at 28,756 residents on July 1, 2025, up 5.5% from 27,265 in 2020. That works out to 150 people per square mile of land. Its largest town, Addis, has 7,679 residents, 26.7% of the total. Together its 3 incorporated places hold 53.2% of those residents; the other 46.8% live outside any of them. Testing is reported here more often than across the state: CDC's 42 reported tests for 2022 come to 1.5 for every 1,000 residents (2025 estimate), against 0.4 for Louisiana.
From Addis to Brusly, CDC publishes no figure by town: each reads West Baton Rouge Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Addis | 7,679 | +13.1% | 26.7% |
| Port Allen | 5,015 | +1.6% | 17.4% |
| Brusly | 2,614 | +1.5% | 9.1% |
3 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
West Baton Rouge Parish, Homes
Homes in West Baton Rouge Parish
Of West Baton Rouge Parish's 11,827 homes, 67% are detached houses, against 65% across Louisiana; 22% are mobile homes. Much of West Baton Rouge Parish is recent building: 41% of its homes have gone up since 2000 and the middle year built is 1993, against 1982 for Louisiana. Owners live in 76% of the occupied homes (Louisiana: 67%), so for most households a test and a fix are their own to order.
| Homes | West Baton Rouge Parish | Louisiana |
|---|---|---|
| Housing units | 11,827 | 2,094,002 |
| Detached houses | 67% | 65% |
| In buildings of 5 or more | 5% | 11% |
| Mobile homes | 22% | 13% |
| Built before 1960 | 12% | 19% |
| Built since 2000 | 41% | 27% |
| Middle year built | 1993 | 1982 |
| Owner-occupied | 76% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.